multiply method
Multiply entries in this with entries in arg.
Implementation
void multiply(Vector2 arg) {
  final argStorage = arg._v2storage;
  _v2storage[1] *= argStorage[1];
  _v2storage[0] *= argStorage[0];
}Multiply entries in this with entries in arg.
void multiply(Vector2 arg) {
  final argStorage = arg._v2storage;
  _v2storage[1] *= argStorage[1];
  _v2storage[0] *= argStorage[0];
}